Double-pan hopper and foot control



Oct. 28, 1930. J. c. SCHUMACHER DOUBLE PAN HOPPER AND FOOT CONTROL Filed Oct. 28. 1929 3 Sheets$heet 1- IN VEN TOR A TTORNEY Oct. 28, 1930. J. c. SCHUMACHER 1,779,642

DOUBLE PAN HOPPER AND FOOT CONTROL Filed Oct. 28, 1929 3 Sheets-Sheet 2 IN VENT OR A TTORNE Y Oct, 28, 1930. J. c. SCHUMACHER 1,779,642

DOUBLE PAN HOPPER AND FOOT CONTROL NVENTOR A TTORNE Y provide meansin conne'ction'with the upper compartment to form a water seal -1Il connec-' rattlingandmost motionare-prevented. Forv this purpose there 18' provided, 1n =connect1on Patented Oct. 28, 1930 uurrsn are JOHN c. SCHUMACHER, 0F DAYTON, 01110, ASSIGNOR TO THE nAYTonMFG. COMPANY,

. 0F. DAYTON, o Io, a coRroRATIoN OF OHIO nonnnn-rarvrrorrnaa vn Foo'r oolv'lfnor.

' Application filed as as, 1 929. seriaiNa'masea This inventionrelates to improvements in water closets especially adapted for use 1n connection with rallway cars. l

It isparticularly the object'of this inven tionto provide means for flushing the hopper found in water closetsby means of a footoperatedlever.

In hoppers of the kind here described and shown there are two compartments, separated from each. other by means of flush pans. These flush pans are adapted to be operated successively, whereby the material found in the hopper is first discharged from an upper compartment to a lower compartment,from which it is dischargedafterjthe upper compartmentis closed.

It is also an object of this inventionto providein connection with avhopper such as the kind shown here, avalve to controlthe admission ofwater, thereto for flushing the hopper. Inthe presentginstance the valve is located immediately behind the upperrim of 4 the hopper and is controlled by afoot lever for the purpose of'admitting water to the hopper to first flush the upper compartment and draw the contents thereof into a lowerv closed compartment, After this the water is partly cut off and theiupper compartment is closed and thelower compartmentopened for the purpose of flushing the lower (30111-1 partment. 7

It is also an object of this invention to It is also an" object (if this nve ada to,

provide a device of this kind operatedby a single movement of the footle'ver, which is so connected to a valve structure that all any unnecessary noise and rattling;

In an invention of this type all of theparts of sameness are eate ii aeeslia ely numeral-6.

adjacentthe hopper so that the least amount of space is required for installing and in the location of this hopper in connection withthe water closet; v r

For the purpose of illustration there is shown in the accompanying drawings a preferred embodiment of this invention.

Referring to the drawings: 7

Figure 1 is a side elevation of'thef hopper with the lower part thereof shown in section; In this View the flush pansare in normal positions,the upper one being closed and the lower one open. v e j Figure 2 is a view similar to Figure 1 but with the flush pans in initial stages of flushing, withlthe upper panopen andthe lower pan closed. a

Figure .8 is a top plan view of the hopper showing thelever mechanism for operating the valve and the flush pans.

Figure l is a side elevation of'the hopper showing the lower pan in flushing position.

Figure 5 is a longitudinal vertical section of thevalve ,mechanismfor controlling the admission of waterto the hopper. -Figure 6is a side view with the lower part thereof insection, showing a modified form of control mechanism for the pansand the valve. v i The hopper or bowl as here described and shownfis indicated by the numeral 1, and has on the top thereof the usual seat and closure therefor. r k

The hopper as here shown is composed of two compartments, an upper one and a lower one. For closing the exit of the upper com,-

7 partment' or the passageway therefrom to the lower compartment, there isprovided an 'upper flush pan 2. For closing the upper compartment this pan engages a circular rib 3. This pan is pivoted to a shaft 4. On one end of this shaft there is a lever rigidly attached thereto, one arm of which is indicated by the numeral 5 and the other arm by the The lower flush pan is indicated by the numeral 7 and closes the exit from the hopper. This pan is pivoted at a point 8, which has a shaft extending through the side walls of the hopper-insuitable bearings therefor. Form ing an extension of the pan 7 is an arm 9. This arm is pivoted to the socket part 10 on a link member. Within this socket part is a part 11 which has on the end thereof a head 12. This head fits within the part 10 for sliding movement therein.

Fitting around the part 11 and screw threaded into the end of the socket member 10 is a plug 14. Between this plug 14 and the head 12 is a spring 13. This spring allows certain amount of resilient'action between the parts of the link. The outer end of the part 11 is slotted, as indicated at 15. 16 is a foot lever pivoted on the front lower wall of the hopper at a point 17 Extending rearwardly and downwardly from the foot lever is an arm 18 which is pivoted at its end to one end of a link 19. The other end of this link 19 is pivoted to the part 11 of the connecting link between the two flush pans. The slot 15, found on the end of the part 11, engages a pin found on the outer end of the arm 6 which operates the upper flush pan. The link 19 is pivoted to the member 11 at a point indicated by the numeral 20.

From the foregoing description, taken in connection with the drawings, it is obvious that an operation of the foot lever 16 first closes the lower flush pan 7, and after this pan is substantially closed a further operation of this lever operates the arms 5 and 6, whereby the upper flush pan is lowered and the valve lever is operated so that the upper compartment is flushed and the contents thereof admitted to the lower compartment. When the foot lever is released by means of weights on the ends of the shafts 4 and 8, the pans assume the positions shown in Figure 1, and in these positions the lower compartment is flushed and a certain amount of water is admitted to the upper compartment so as to form a seal in the lower part thereof.

The valve mechanism for controlling the admission of water to the hopper is shown in Figure 5. The casing of this valve is indi.- cated by the numeral 21, which has an inlet 22, connected to any suitable source of water supply, and an outlet 23 which leads to the hopper. This casing is placed immediately in the rear of the hopper and just beneath the seat.

The numeral 24 indicates the valve seat, while 25 indicates the valve. This valve may be made of any suitable material, preferably some material that resists the action of the water and forms a close seal between the valve and the valve seat. Extending outwardly from the valve is an outer hollow valve stem 26. This valve stem extends into a hollow plug 27, which is ,screw threaded into the walls of the casing. The hollow part of this plug is indicated by the numeral 28. lVithin the part 28 of the plug 27 and fitting within the hollow valve stem 26 is a. spring 29, which tends to keep the valve 25 seated.

Extending inwardly from the valve, in a direction opposite to that of the valve stem 26, is avalve stem 30 which is attached to the valve and the valve stem 26 by means of a screw 31. The inner end of the valve stem 30 has formed therein a hole 32 which receives one end of an operating stem 33. One end of the operating stem is reduced, as indicated by the numeral 34, for engaging within the hole 32. On the part of the casing directly opposite the plug 27 is a cap 35 screw threaded onto a certain part of the casing. This cap has provided therein an opening 36 which receives the end of the operating stem 33 opposite to the end 34.

The larger part of the inner cavity of the casing is formed into a circular cylinder used for a dash pot, and is indicated by the numeral 37. Within this cylinder 37 there operates a valve member 38, which is suitably mounted upon the operating stem 33. The purpose of this dash pot structure is to prevent any rattling or unnecessarily rapid movement of the valve so that the parts not only of the valve but also of the flushing pans have no loose and unnecessarily rapid movement.

In order to permit of the necessary shifting of the water in the casing from one side of the dash-pot valve to the other, there is provided a by-pass 43. This by-pass is regulated by means of a valve 44. By the regulation and operation of this valve the extent of the opening of the by-pass may be controlled so as to increase or diminish the amount of water that can pass from one side of the dash pot valve to the other in any given length of time, and thereby regulate the speed with which the valve may shift from one position to another.

In the operating stem there is provided a slot 39. This slot is to receive one end of a valve operating arm 41 mounted upon the,

For the purpose of returningthe pans to their normal positions there is provided, in connection with the shaft 4 of the upper pan a weight 46 which tends to hold this 'pan' closed, and with the lower pan there is pro-.

vided, in connection with the lower shaft 6, a weight 47 which tends to keep this pan normally open.

It is obvious from the foregoing description, taken in connection with the drawings, that operation of the foot lever tends to suecessively operate the flush pans, first to close the lower one and open the upper pan, and

operate the valve to admit water to the hopper so that the compartments or" the hopper'are flushed.

It is also obvious that from the valve structure here described a well regulated action is obtained, and that there is no lost motion or jerking or flopping of any of the parts of the apparatus, and the rapidity with which the valve operates may be easily controlled by means of the by-pass and the valve that controls the by-pass.

It is also obvious that applicant has produced a compact and easily operated hopper,

one that is reliable in its operation and one a; link 19, and by this link 19 is connected to the arm 6 which is mounted upon one end of the shaft forming the pivot of the upper flush pan. In the operation of the foot lever here shown the flush pan is open and atthe same time the valve is operated to admit water to the hopper for the purpose of flushing it.

The operation of this form is substantially the same as that shown in the other figures, the only difference being that there is here shown only one flush pan, whereas in the other figures two are shown.

I desire to comprehend within my invention such modifications as may be clearly embraced within my claims and thescope of my invention.

Having thus fully described my invention, what I claim is new and desire to secure by Letters Patent, is: v

1. In a water closet, a hopper having an upper and a lower flush pan, each pivotally supported by said hopper, a spring cushioned sectional link connection between said flush pans, said link having only a pivotal connection with one flush pan and a pivotal and slotted connection with the other flush pan, and a foot lever pivotally supported near one endand operatively connected at said one end to said link, whereby on operation of said foot lever one flush pan is first operated and thereafter the other flush pan is operated thereby.

2. In a water closet, a hopper having a valve-controlled water inlet and an upper and a lower pivotally supported fiushpan, a

loose and resilient link connection. between said flush pans, anda link and lever connection between one of said pans and said valve, and afoot lever operatively connected to said first link whereby on operation of said foot lever said flush pans are operated in succes- ..s an the, valve i ope ate thone of saidfiu-sh pans'toifiushthehopper. 3. In a water closet, a hopper having a valve-controlled water inlet and an upper and a lower pivotally supported-flush pan, a loose resilient link connection betweengsaid flush pans and alink and lever connectionbetween ;one of said pans and said valves, means opei' atively connectedto said first link whereby the fluslrpans can be successively operated 1 and the valve operated with one of said pans toflush the hopper, and a dash pot and by- .passmechanism' connected to said valve to regul e an c n t a tio theracti n of the pans. 1

V and'a lowerpivotally supported flush pan, a loose resilient link connection between sai d flush pans and link andv lever connection between the upper flush pan and the valve, means operatively connected to said firstnamed link tomove said link to successively operate the flush pans and operatethe valve jat.;the timelof the operation ,of theupper flush pan, and means connected to said valve to prevent a too sudden and loose operation ofthevalve. g

5. In a water closet, a hopper havingwa valve-controlled water inlet, an upper flush pan in said hopper attached to a shaft which extends through and is rotatablysupported by the side wallsoit' said hopper, a weight on one end of said shaft to normallyliold said pan closed, oppositely extending arms on the other end of saidfshaft, One ot;said arms .being connected to said valve, a lower flush pan at the lower endot said hopper-at.-

4, In a water closet, ahopperhaving valve-controlled water inletand an upper,

tachedto a-shaft whichextends throughand is -rotatably supportedyby said ihopper, a Weight .on'one end of saidlast shaft toinorimally hold the pan thereon open, an arm. extending from the other end ofsaidlastshaft, ,a resiliently eXtensiblesect-ionaldink pivotally connected .to the last-named arm and pivotally and slidably connected to the other arm of the fist-named shaft, and a foot-operated lever connected to said link, whereby on operation of said lever the lower flush pan is closed and thereafter the upper flush pan-is opened and the valve is opened to flush the hopper. V

6. In a water closet, a hopper having an upper and a lower flush pan, a shaft for each pan-pivotally supported by said hopper, a weight on one end of each shaft to hold the upper pan closed and the lower pan open, an arm extending from the other end of each shaft, a link connecting the outer ends of said arms, said link, consisting of a socket member pivoted to the lower arm and plunger member pivoted at one end to the upper connection between the two members, and a foot lever connected to the socket member to first close the lower pan and thereafter open the upper pan.

7. In a water closet, a hopper having an upper and a lower flush pan, a shaft for each pan pivotally supported by said hopper, a weight'on one end of each shaft to hold the upper pan closed and the lower pan open, an arm extending from the other end of each shaft, a link connecting the outer ends of said arms, said link consisting of a socket member pivoted to the lower arm and plunger member pivoted at one end to the upper arm for a limited longitudinal movement thereon and having the other end slidably mounted in said socket member with a spring connection between the two members, a foot lever connected to the socket member to first close the lower pan and thereafter open the upper pan, and means operated by the foot lever to admit water to the hopper-to flush it.

8. In a water closet, a hopper having an upper and a lower flush pan, a shaft for each pan pivotally supported by .said hopper, a weight on one end of each shaft to hold the upper pan closed and the lower pan open, an arm extending from the other end of each shaft, a link connecting the outer ends of said arms, said link consisting of a socket member pivoted to the lower arm and plunger member pivoted at one end to the upper arm for a limited longitudinal movement thereon and having the other end slid- J ably mounted in said socket member with a spring connection between the two members, a foot lever connected to the socket member to first close the lower pan and there after open the upper pan, means operated by the foot lever to admit water to the hopper to flush it, and means operated by the foot lever to admit water to the hopper as the upper pan is opened to flush the hopper.

In testimony whereof, I afliX my signature.

JOHN C. SCHUMACHER. 

